Error with auto test in ruby ​​on rails

Question

I ran an autotest command, and this is the error I received. I follow Hartley’s book and wondered if this clash happens because the rails now go with ZenTest or something else? How can I get through this error. I'm new to RoR

Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] /Users//.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find ZenTest (>= 0) amongst [abstract-1.0.0, actionmailer-3.2.8, actionmailer-3.2.8.rc1, actionmailer-3.0.1, actionmailer-3.0.0, actionpack-3.2.8, actionpack-3.2.8.rc1, actionpack-3.0.1, actionpack-3.0.0, activemodel-3.2.8, activemodel-3.2.8.rc1, activemodel-3.0.1, activemodel-3.0.0, activerecord-3.2.8, activerecord-3.2.8.rc1, activerecord-3.0.1, activerecord-3.0.0, activeresource-3.2.8, activeresource-3.2.8.rc1, activeresource-3.0.1, activeresource-3.0.0, activesupport-3.2.8, activesupport-3.2.8.rc1, activesupport-3.0.1, activesupport-3.0.0, addressable-2.3.2, arel-3.0.2, arel-1.0.1, autotest-4.4.6, builder-3.0.4, builder-3.0.3, builder-2.1.2, bundler-1.2.1, bundler-1.2.0, bundler-1.0.22, coffee-rails-3.2.2, coffee-script-2.2.0, coffee-script-source-1.4.0, coffee-script-source-1.3.3, diff-lcs-1.1.3, erubis-2.7.0, erubis-2.6.6, excon-0.16.2, execjs-1.4.0, heroku-2.31.2, heroku-api-0.3.5, hike-1.2.1, i18n-0.6.1, i18n-0.4.2, journey-1.0.4, jquery-rails-2.1.4, jquery-rails-2.1.2, json-1.7.5, launchy-2.1.2, mail-2.4.4, mail-2.2.19, mime-types-1.19, multi_json-1.4.0, multi_json-1.3.6, netrc-0.7.7, polyglot-0.3.3, rack-1.4.1, rack-1.2.5, rack-cache-1.2, rack-mount-0.6.14, rack-ssl-1.3.2, rack-test-0.6.2, rack-test-0.6.1, rack-test-0.5.7, rails-3.2.8, rails-3.2.8.rc1, rails-3.0.1, railties-3.2.8, railties-3.2.8.rc1, railties-3.0.1, railties-3.0.0, rake-10.0.2, rake-0.9.2.2, rdoc-3.12, rest-client-1.6.7, rspec-2.12.0, rspec-core-2.12.1, rspec-expectations-2.12.0, rspec-mocks-2.12.0, rspec-rails-2.12.0, rubygems-bundler-1.1.0, rubyzip-0.9.9, rvm-1.11.3.5, sass-3.2.3, sass-3.2.1, sass-rails-3.2.5, sequel-3.20.0, sinatra-1.0, spork-0.9.2, spork-0.9.0, sprockets-2.1.3, sqlite3-1.3.6, taps-0.3.24, thor-0.16.0, thor-0.14.6, tilt-1.3.3, treetop-1.4.12, treetop-1.4.10, tzinfo-0.3.35, tzinfo-0.3.33, uglifier-1.3.0] (Gem::LoadError) from /Users//.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec' from /Users//.rvm/rubies/ruby-1.9.2-p320/lib/ruby/site_ruby/1.9.1/rubygems.rb:1231:in `gem' from /Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /bin/autotest:18:in `<main>' from /Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /bin/ruby_noexec_wrapper:14:in `eval' from /Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /bin/ruby_noexec_wrapper:14:in `<main>' 

So, after the suggested answer, I tried to remove Zentest first

 -MacBook-Pro:proto1 $ gem uninstall ZenTest-4.8.4 Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] INFO: gem "ZenTest-4.8.4" is not installed 

After that (in addition to the error messages, I installed a version to downgrade)

 s-MacBook-Pro:proto1 $ gem install ZenTest --version "=4.8.3" Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Fetching: ZenTest-4.8.3.gem (100%) Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Successfully installed ZenTest-4.8.3 1 gem installed Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Installing ri documentation for ZenTest-4.8.3... Installing RDoc documentation for ZenTest-4.8.3... 

And then I run an autotest with this show!

 s-MacBook-Pro:proto1 $ autotest Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] Invalid gemspec in [/Users//.rvm/gems/ ruby-1.9.2-p320@twitclone /specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"] loading autotest/rspec2 

New part of the problem:

After I was asked to delete the gemspec ZenTest file, I cannot start spork or the rails server. I installed ZenTest 4.8.3, but it showed the following:

 $ spork Using RSpec Preloading Rails environment Could not find ZenTest-4.8.4 in any of the sources Run `bundle install` to install missing gems. 

Answer 1

To use the autotest command, you need to install the ZenTest .
I think you have installed ZenTest 4.8.4 on your system. This gem is not working properly.
Therefore you need to lower it to 4.8.3 . Remove all files associated with ZenTest 4.8.4 . then install 4.8.3 with the command

gem install ZenTest --version "=4.8.3"

I think this will solve your problem.

Hooray!..